Panasonic KX-TGA573Factory ServicedIncludes 90 Day WarrantyThe Panasonic KX-TGA573S 5.8GHz FHSS gigarange expandable digital cordless camera is designed to turn your Panasonic 5.8GHz cordless phone system into a video monitoring system. It requires the KX-TG5771S or the KX-TG5761S base models to function. Like the systems' handsets, the camera operates with 5.8GHz frequency-hopping spread spectrum technology, meaning that it operates on a different wavelength with much less traffic than the 2.4GHz technology, while maintaining great security, incredible clarity and long range.